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Security & Cryptography Hardware

Cryptographic Accelerators: AES, RSA, and ECC in Hardware

Running cryptographic algorithms in software is often too slow and power-hungry for demanding applications. Dedicated hardware cryptographic accelerators perform these operations far faster and more efficiently than a general-purpose processor.

VIDYUTT• July 30, 2026• 2 min read
Figure 1: Dedicated hardware engines accelerate the most common cryptographic operations – bulk encryption, key exchange, and hashing.
Figure 1: Dedicated hardware engines accelerate the most common cryptographic operations – bulk encryption, key exchange, and hashing.

What Cryptographic Accelerators Involve

An AES engine accelerates symmetric encryption, used for bulk data protection where the same key encrypts and decrypts data. RSA and ECC (Elliptic Curve Cryptography) engines accelerate asymmetric operations – used for tasks like secure key exchange and digital signatures – which are computationally far more expensive than symmetric operations and benefit enormously from hardware acceleration. SHA engines accelerate cryptographic hashing, used for verifying data integrity and as a building block in many other security protocols.

Why It Matters

Software-only cryptography can become a serious performance and power bottleneck, particularly for high-throughput applications like network encryption or for battery-powered devices performing frequent secure operations. Hardware acceleration removes this bottleneck while typically also improving resistance to certain classes of side-channel attack compared to software implementations.

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